Top Definition
it is the study of chemical structures and their activity relationships.
its one of the hardest subjects in pharmacy
and only about 10% of the students pass its exam.
later on it teaches you how to modify that chemical structure into a better compound, such as in drug design.
in the medicinal chemistry book " essentials of medicinal chemistry upate" the lactam ring is found in all penicillins, it has grave effect on its activity
the penicillins differ in activity according to the modification made on that lactam ring
by wmaheyhey July 25, 2009

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×